Chiller



FIG. 1 is a perspective view of a chiller showing our new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a back elevation view thereof;

FIG. 4 is a left side elevation view thereof;

FIG. 5 is a right side elevation view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken line in the figure drawings represents unclaimed environment only and form not part of the claimed design. 

CLAIM The ornamental design for a chiller, as shown and described. 